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The Process of Getting a Renovation or Extension Approved in NSW

Writer's picture: Mikal JensenMikal Jensen

A renovation refers to the process of improving, updating or restoring an existing structure or space without significantly altering its overall purpose or layout.


It typically involves making changes to the interior or exterior of a building to enhance its functionality, aesthetics, or condition.


Renovations can range from minor upgrades, like repainting walls or installing new fixtures, to major overhauls, such as replacing flooring, upgrading kitchens or refurbishing structural elements.


In a planning context, renovations are often distinguished from extensions, which involve adding new rooms or structures to a property, and may or may not require council approval depending on the scale and nature of the work.


Renovating or extending your home can enhance your living space and increase property value, but the approval process in New South Wales (NSW) requires careful attention to local regulations.


Whether you're planning a modest upgrade or a major extension, understanding the steps and requirements will make the process smoother.


1. Understand Local Regulations


Before starting, it’s essential to understand your property’s zoning and planning controls.


Zoning dictates what type of development is allowed on your property and is outlined in your council’s Local Environmental Plan (LEP).


Review the Development Control Plan (DCP) for detailed guidelines specific to your area, such as setback requirements, maximum building height and floor space ratios.


If your property is heritage-listed, additional regulations apply to preserve its character.


Extensions to heritage-listed properties must respect the original design and include detailed heritage assessments. Consulting a heritage expert can help streamline this process.



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2. Approval Pathways: DA or CDC?


Depending on the scope of your project, you’ll either need a Development Application (DA) or a Complying Development Certificate (CDC).


  • DA: Suitable for complex renovations or extensions, especially those outside the CDC criteria. The process involves submitting detailed documentation to your local council, which will assess the proposal, notify neighbours, and consider objections.

  • CDC: A faster alternative for straightforward projects that meet pre-set standards under the State Environmental Planning Policy (Exempt and Complying Development Codes) 2008. A private certifier or council can issue the certificate.


For projects exceeding $5,000, a building permit is also required.


3. Documentation and Compliance


For both DA and CDC applications, thorough documentation is essential. Typical requirements include:


  • Plans and Elevations: Prepared by a qualified architect or draftsman, showing the proposed design in detail.

  • BASIX Certificate: Ensuring compliance with energy and water efficiency standards.

  • Statement of Environmental Effects (SEE): Outlining potential impacts on the environment and neighbours, including mitigation measures.

  • Stormwater Management Plan: Addressing drainage, especially if your site is near council stormwater infrastructure or over a drain.

  • Structural Reports: For projects involving load-bearing changes, consult a structural engineer.


4. Key Considerations for Approval


Building Envelope and Height: Maximise internal space while adhering to height limits and avoiding disputes with neighbours. Engage early discussions with council and neighbours to minimise objections.

Floor Space Ratio (FSR): If your subdivision allows for additional extensions beyond the FSR, prepare a strong case demonstrating why your proposal aligns with the area’s character and planning goals.

Neighbour Impact: Privacy, overshadowing, and visual impact are critical. Address these in your design and SEE to mitigate objections. If disputes arise, respond to council’s notification process professionally and transparently.

Heritage Properties: Extensions to heritage items must respect the original structure. Provide a heritage impact statement, along with an appropriately designed proposal.

Stormwater Issues: If council raises concerns about drainage, consult a hydraulic engineer and revise your plans to include compliant stormwater solutions, ensuring no adverse impacts on neighbouring properties.





5. The Role of Experts


Engaging professionals can make the approval process seamless:


  • Town Planner: To navigate council requirements and prepare compliant applications.

  • Architect: For designing functional, aesthetically pleasing, and regulation-compliant extensions.

  • Engineers: For structural and stormwater reports.

  • Heritage Consultant: If extending a heritage-listed property.


6. Responding to Challenges


Challenges like neighbour objections, heritage constraints, or unforeseen site issues can arise:


  • Neighbour Objections: Respond thoughtfully, addressing concerns with revised designs or additional mitigation measures.

  • Heritage Approvals: Work with experts to propose a design that maintains heritage significance while meeting your needs.

  • Stormwater Compliance: Submit revised drainage plans and work closely with council to ensure compliance.


7. Post-Approval Compliance


Once approved, you’ll need a Construction Certificate (CC) before starting work. Ensure the construction adheres to all approval conditions, including noise, dust, and working hours.


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